Refactor main process and add exception handler for Socket server

package.json

@@ -34,13 +34,14 @@
     "short code"
   ],
   "author": "Dick Choi <fluke8259@gmail.com> (http://kazup.co)",
-  "license": "No License",
   "bugs": {
     "url": "https://github.com/Rokt33r/codexen-app/issues"
   },
   "homepage": "https://github.com/Rokt33r/codexen-app#readme",
   "dependencies": {
+    "@rokt33r/node-ipc": "^5.0.4",
     "devicon": "^2.0.0",
+    "electron-gh-releases": "^2.0.2",
     "font-awesome": "^4.3.0",
     "fs-jetpack": "^0.7.0",
     "highlight.js": "^8.9.1",
@@ -49,7 +50,6 @@
     "markdown-it-emoji": "^1.1.0",
     "md5": "^2.0.0",
     "moment": "^2.10.3",
-    "node-ipc": "^5.0.0",
     "socket.io-client": "^1.3.6",
     "superagent": "^1.2.0",
     "superagent-promise": "^1.0.3"